Hoisting-machine.



(No Model.)

8. MATTSON.

HOISTING MACHINE.

(Application filed June so, 1898.)

m: oams rzrzas 00., Pnomumu, WASHINGTON, mo.

Patented Feb. l3, I900.

2 Sheets-Sheet l,

No. 643,5!6. Patented Feb. 13, i900. S. MATTSON.

HOISQTING MACHINE.

I (Apglicahon filed June 30, 1898.)

(No Model.) 2 Sheats-Sheat 2.

[III

UNITED STATES PATENT OFFICE.

SAMUEL MA'ITSON, OF NEW YORK, N. Y.

HOISTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 643,516, dated February13, 1900.

Applicationflled June 30,1898. Serial No. 684,876. (No model.)

To all whom it may concern.-

Be it known that I, SAMUEL MATTSON, of New York, (Brooklyn,) in thecounty of Kings and State of New York, have invented certain new anduseful Improvements in Hoist ing-Machines; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

This invention contemplates certain new and useful improvements inhoisting machines.

The object is to provide simple and highlyefficient friction drums forthe bull -wheel rope which may be operated by one of the hoisting-ropedrums of a hoisting-engine,thus leaving free for any other purpose theusual winch-head controlled by the other one of two hoisting-rope drums.

The invention will be hereinafter fully set forth, -and particularlypointed out in the claims.

In the accompanying drawings, Figure 1 is a view in perspective, showinghoisting machinery provided with my improvements. Fig. 2 is an enlargedend view of the frictionclutches. Fig. 3 is a sectional view on line 33, Fig. 2. Fig. 4. is a detail.

Referring to the drawings, A A designate the hoisting-rope drums of ahoisting-engine. Upon the shaft 0, of the drum A is an ordinary winch-head ct, while carried by the shaft a of drum A is a gear-pinion 1,the hub 2 of which is elongated and keyed on said shaft, said pinionbeing some distance outside of the ordinary frame 3, in which saidshafts a and a have their bearings.

B designates a supplementary frame or casting which is bolted directlyto frame 3 by bolts passed through openings 4 in a flange 4 thereof.From this frame B project two studs or non-rotary shafts 5 and 6, theouter ends of which, as also the end of shaft a fit in openingsin atriangular frame 7,held on said shafts by nuts 8. This frame serves tohold the several shafts firm and keep the gear-wheels in place. Uponeach of the non-rotary shafts 5 and 6 is loosely mounted a gear-wheel 9,both of which mesh with and are driven by the gear-pinion 1. The innerface of each gear-wheel has a continuous groove 10, preferably V-shaped.

O O. designate the drums on which'the rope dof the bull-wheelD is wound.These drums are loose on their respective shafts 5 6 and are each formedwith the usual circumferential concavity to accommodate the rope. At itsouter end each drum has an enlarged flange 12, formed with a continuouscircular rib 13 to conform to the groove 10, in which it is designed tofit when the drum is moved longitudinally on its shaft against itsgear-wheel. This movement of the drums is eifected by cams 14 15 onshafts 5 and 6 bearing each against a cam-like boss 16, preferablyintegral with the casting. These cams act in opposition to each other,so that when moved in unison one will force the adjacent drum tight upagainst its coacting gear-wheel, while the other drum will besynchronously released by the turning of its cam and be free to re=volve independently of its gear-wheel. Each cam has an arm 17, both ofwhich are connected at their outer ends by a link 18 and are under thecontrol of alever 19. By moving the latter both cams will be movedtogether, binding one drum and releasing the other. The hull wheel ropewill be thus wound on the former as it is unwound from the latter. Thedrum in unwinding or pay ing out the rope will rotate in oppositedirec-' tion to the gear-wheel with which it coacts when the rope isbeing wound thereon. By not tightening either drum both may rotateindependently of their gear-wheels. By thus controlling the Winding andunwinding of the bull-wheel rope by two drums rotatable bya single oneof the hoisting-rope drums the winch-head on the shaft of the otherhoistingrope drum is free to be used for any desired purpose.

D is the bull-wheel, on which the rope d is wound to effect the swingingof the boom d and mast (1 The latter is suitably mounted at its lowerend in any preferred way.

The advantages of my invention are apparent to those skilled in the artto which it appertains.

I claim as my invention 1. In a hoisting-engine, a drum, a gearpinionrotatable therewith, two drums, gearwheels for the latter meshing withsaid pinion, and means for binding said last-mentioned drums to andreleasing them from said gearwheels.

2. In a hoisting-engine, a drum and shaft therefor, a gear-pinion onsaid shaft, a nonrotary shaft, a gear-wheel on the non-rotary shaft inmesh with said pinion, a drum on said non-rotary shaft, and means forbinding said drum to said gear-wheel, substantially as set forth.

3. In a hoisting-engine, a drum and shaft therefor, a gear-pinion onsaid shaft, two nonrotary shafts paralleling the first-mentioned shaft,gear-wheels loosely mounted thereon meshing with said pinion, drums alsoloosely mounted on said non-rotary shafts, and means for binding saiddrums to, and releasing them from, said gear-wheels, substantially asset forth.

4. The combination with a hoislingengine, of two non-rotary shafts,gear-wheels loose on such non-rotary shafts, means for rotating saidgear-wheels, drums also loose on said shafts, and means for binding saiddrums to, and releasing them from, said gear-wheels, substantially asset forth.

5. The combination with a hoisting-engine,

a drum and shaft therefor, and a gear-pinion fast on said shaft, of twonon-rotary shafts, gear-wheels loose thereon, meshing with said pinion,drums also loose on said shafts, cams for binding said drums againstsaid gearwheels, and connections between said cams, whereby as one drumis bound to its gearwheel the other drum will be released, substantially as set forth.

6. The combination with a hoisting-engine, a drum and shaft therefor,and a gear-pinion 011 said shaft, of a supplemental frame havingnon-rotary shafts projecting therefrom paralleling the first-mentionedshaft, gearwheels loose on said non-rotary shafts, meshing with saidgear-pinion, drums also loose on said non-rotary shafts capable offrictional contact with said gear-wheels, cams on said non-rotary shaftsfor binding said drums against said gear-wheels, and connections betweensaid cams, substantially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

SAMUEL MATTSON. Vitnesses:

CHARLES FISHER, J r., NATHANIEL P. MOORE.

